So, after undoing everything I did, because it didn't work very well, LOL...

I decided to cut out all the distressed metal from my welding a seam "continuously" on the back side and distorting the metal.

Here I have patched a large part linking the fender and extension with butt joints.

Then, I cut a piece out of the old fender to use as a patch panel because of the curve etc..

You can see that the patch from the old fender came from a tar truck. I used a heat gun and a gasket remover on my die grinder to clean it up.

More to follow.
Attachments
20190406_173346 (Large).jpg (161.73 KB, 74 downloads)
20190406_173354 (Large).jpg (99.59 KB, 75 downloads)
20190406_173405 (Large).jpg (230.68 KB, 71 downloads)
20190406_173415 (Large).jpg (294.85 KB, 73 downloads)
20190406_173422 (Large).jpg (184.49 KB, 70 downloads)


1948 GMC 2 Ton
1958 GMC 370-8
1965 GMC 5000
1970 Chevrolet C50